12. Platelets: Short-Lived Protectors
Platelets are tiny cell fragments in your blood with a crucial job: stopping bleeding by forming clots. They have a brief lifespan of just 7-10 days, after which they’re replaced by new platelets from the bone marrow.
Their rapid turnover is essential for maintaining the body’s ability to heal wounds and minimize blood loss from injuries. Without this constant renewal, even minor cuts could become dangerous. For more, see NCBI Bookshelf: Platelets.